Drifting Continents

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Vocabulary

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Pangaea:"all lands" a super continent(300 million years ago)
continental drift:the movement of continents
fossil: trace of an organism that is preserved by rock

Outline

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*summary

• Africa and South America look like they fit together

*theory of continental drift

• 1910 Wegenar
• hypothesis of single land (Pangaea)
• supported idea with study of landforms, climate ,and fossils
  • evidence from landforms
    • used mountains
    • from Africa and south America

• evidence from fossils
  • coal fields
  • common fossils found in distant continents

• evidence from climate
  • continents today have very different climates than from years ago
• scientists reject Wegners theory
  • couldn't prove how continents drifted

Diagram

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